430 Stainless Steel Round Bar (UNS S43000)
430 Stainless Steel Round Bar (UNS S43000) is a straight chromium ferritic stainless steel known for good corrosion resistance, excellent oxidation resistance, and cost efficiency due to its low nickel content. This grade offers good formability and machinability, making 430 stainless steel round bars suitable for applications where moderate corrosion resistance and attractive surface finish are required. It is magnetic in nature and widely used in decorative, automotive, and household applications.
Key Features
- UNS Number: S43000
- Ferritic stainless steel with good general corrosion resistance
- Excellent oxidation resistance in mild environments
- Cost-effective alternative to austenitic grades
- Good formability and machinability
- Magnetic in nature
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM / ASME | 430 |
| UNS | S43000 |
| EN | 1.4016 |
| DIN | X6Cr17 |
| JIS | SUS 430 |
Sizes
- Diameter Range: 5 mm to 350 mm
- Length: 3 m, 6 m, or as per customer requirement
- Custom cut-to-length sizes available
430 Stainless Steel Chemical Composition
| Element | Percentage (%) |
|---|---|
| Carbon (C) | ≤ 0.12 |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | ≤ 0.75 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
UNS S43000 Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 450 MPa |
| Yield Strength (0.2% Offset) | ≥ 205 MPa |
| Elongation | ≥ 22% |
| Hardness | ≤ 183 HB |
SS 430 Physical Properties
| Property | Value |
|---|---|
| Density | 7.7 g/cm³ |
| Melting Point | 1425 – 1510°C |
| Thermal Conductivity | 26.1 W/m·K |
| Electrical Resistivity | 0.60 µΩ·m |
| Modulus of Elasticity | 200 GPa |
Types of 430 Stainless Steel Round Bar
- Hot Rolled Round Bar
- Cold Drawn Round Bar
- Bright Round Bar
- Turned and Polished Round Bar
- Centerless Ground Round Bar
Applications
- Automotive trim and exhaust components
- Kitchen equipment and household appliances
- Architectural and decorative components
- Fasteners, shafts, and machined parts
- Food processing and dairy equipment (mild environments)
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